Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1282289Generated: October 25, 2026

Imidazole → Bis-(1H-imidazol-2-YL)-methanone

https://huagongshe.com/reaction/1282289

Reaction equation

Participants

RoleNameHCIDCharge
ReactantImidazoleHCID 795—
ReactantTriphosgeneHCID 94429—
ProductBis-(1H-imidazol-2-YL)-methanoneHCID 5250894—
ProductImidazolium chlorideHCID 10197644—

Reaction Steps

Reaction of imidazole with bis (trichloromethyl) carbonate produces carbonyl diimidazole and crystalline imidazole hydrochloride. Insoluble imidazole hydrochloride is removed from the reaction mixture quantitatively by filtration and the carbonyl diimidazole is recovered by removing the solvent or crystallization under cooling or a combination thereof.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06455702B1
Source datasetuspto-grants-2002_09
ORD IDord-f734730a142b45d28a7983dd411b3709
Source noteuspto-grants-2002_09